Converting A Drill Press Into A Milling Machine

Mills are a huge investment, and for hobbyists without the space to install their own personal mill, it can sometimes be a pain to have to find a facility with a mill to complete your project.

What if you could convert your drill press into a mill instead? YouTuber [Small Metalworking Machines] explores this in his video, where he takes a small Central Machinery drill press and adds a few mods. He took some steps to improve the quill, spindle, and bearings — boring down the quill, replacing the bearings, and finally turning and re-threading the spindle it at 1/2-20.

With the adjustments, he was able to add in a cheap drill chuck, which fit in quite nicely with just a slight wobble of 5 thousandths on either side. To introduce some control, he added in a worm gear to engage a gear on the spindle. A pivot point disengages the worm gear, while bearings provide it controlled movement from the worm wheel.

He also added a cheap milling table from eBay, attached to the base of the drill press, all for a total of $120. While it’s not perfect, it’s still significantly less expensive than buying a mill!

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Ham Radio Modding


I was pondering our archive and noticed that we’ve never given attention to some of the more interesting amateur radio hacks. I’d say that most of the amateur radios on the market are susceptible to modding. The mods generally result in a wider band of transmission or reception. I used to own an Icom 706MKII – a serious mobile rig that, after removing a diode or two, gains an extremely wide transmission band. You can find a range of mods here – most are just a quick google away. (The FCC won’t be happy if they find you using an unlicensed device, but there’s an argument for having the capability in case of emergency.)